Today, many companies reward their employees for filing patents. The patents don't even have to be good, they just have to be accepted by the patent office. This leads to masses of patents, mostly poor quality, making thickets and uncertainty. If company policy could be changed - as Moglen suggests is already happening in some companies - to give employees this same bonus whenever they modify a product to avoid a competitor's patent, this would reduce patent stockpiling and would reduce patent infringement.